Device for grooving valve stems and the like



Nov; 16, 1937. H. P. PHILLIPS i 2,099,228

DEVICE FOR GROOVING VALVE STEMS AND THE LIKE Filed March 18, 1937 1? I 1O J 4 mvgmon.

Haro/o P P/I/Y/ A, ATTORNEYs Patented Nov. 16, 1937 means:

DEVICE. FOR GROOVING VALVE STEMS AND' THE LIKE Harold P. Phillips, Hastings, Mich, assignor to Hastings Manufacturing Company, Hastings,

Mich.

' Application March" s, 1937, SeriaLNo. 131,632

11 Claims.

The main objects of this invention are: First, to provide a device for conveniently and v quickly forming circumferential grooves in valve stems or other rod stock. q Second, to provide a device of the'type described which is adapted for hand operation in association with a vise or other readily available gripping means. g

Third, to provide a device of the type described which is simple in structure, yet fully adjustable and. capable.- of accommodating a relatively wide range of sizes andshapes of packing.

.Objects relating to details and economies of the invention will appear from the description to follow; The invention is defined and pointed out in the claims. v A structure which is a preferred embodiment of the invention is illustrated in the accompanyingdrawing, in which: i

a Fig; leis a view in front elevation of the device of the invention, shown in operative position on a'irvalve stem, with a vise for gripping the said stem fragmentarily shown. .Fig. 2 is a View in side elevation of the-device illustrated in Fig. 1 with the work shown in section. Fig. 3 is a fragmentary view mainly in longie tudinal section on line 3-3 of Fig. 5.

Fig. 4 is a view in transverse section on: line 4-4 of Figs. 1, 2 and 3.

Fig.1 5- is a view in transverse section on line .lz -fif-"of-Ei'gscl and 3.1 I f r Fig. 6' is a: perspectiveview illustrating one. of theL-telescoping guiding jaw members of the device. w i I This inven-on relates to a novel and improved deviceof simple design for forming circumferential grooves in a valve stem, such grooves being to; accommodate packing means as shown and ,describ'edin my'copending application Serial; No. 137,057,,i'iled April 15; 1937, entitled Packing for valve stems and: other rod stock. 'I'heembodi merit of the invention illustrated has'been particularly designed for the grooving of valve stems.

45 Howeven-it is obvious that the field of operation to which it is adapted is not necessarily so limited,. and the elementszto beher'einafter more partieularly; described may be utilized, in machining .lOdilStOCkUfi Varying sizes and'shapes" by hand 50 operation and in conjunction with readilyavailable;machine shop equipment. As embodied in the form shown herein, the device is simple in its parts: and. readily and" economically constructed. The simplicity ofv construction rendersthe .55 device one which! may be used by relatively un- .-the jaw il in the member 3.

skilled persons, yet it effects accurate grooving of rod stock for whatever purpose desired.

Referring to the drawing, numeral i in general indicates the device of the invention, which consists of a pair of telescoping body members 2 and 3. The member 2 is preferably in the form of a block of rectangular section recessed in a manner to be hereinafter described, and the member dis inthe form of a rigid U or yoke, having the arms thereof on opposite sides 4 of the member 2. Q'I'he member 2 has formed in the side's'tfthereof' a pair of longitudinally ex tending grooves or ways 5, andthe outer te1escoping member 3 carries pairs of aligned inwardly-extending lugs 6 (Fig. 4) engaged in the slots 5 to guide the members for longitudinal telescoping movement. j

After assembly of themembers 2 and 3 in the manner. indicated; with lugs 6 in the slots 5, a pin 1 is driven into a hole 8 in the member 2, the hole extending transversely of the member fromgone ofthe grooves to the other and being located adjacent the open end thereof. As i1- lustratedin Fig. 5, the ends of pin l project into grooves 5. A pair of holes 9 are provided in the legs of the .U-shaped member 3 to allow the pin 1 to be inserted in the hole 8 and driven therein, as described. Accordingly, the pin 1 will limit outward movement of the members 2 and 3 by engaging one of the pair of aligned lugs 6.

The legs of the U-shaped member 3 are provided adjacent the bight [0 thereof, with transversely aligned angled recesses, the sides 1! l and ends IZzcf the recesses forming a jaw li facing toward the bight. The body member 2 is provided with a similar but oppositely facing jaw forming recess l3,1the sides it and end 23 of which constitute a second jaw 58 facing toward These jaws are not clamping jaws in the sense that they rigidly grip the valve stem i5 inserted therebetween, but they merely act as guide and supporting jaws to permit rotation of the device 5 about the work, which is rigidly gripped in a vise it. In use the jaws are brought into supporting engagement with the stem 15 whereby rotation of the device may be accomplished without destroying the alignment thereof on the stem.

For the-purpose of adjusting the jaws ll, l8, Iprovide a screw l9 which threadingly engages the bight portion Id of the member 3 and abuts the inner end of the member 2. The body member 2 carries a tool or cutter 22 which is 'slidably mounted in a tool seat formed by the longi-. tudinal central channel or slot 23 cut in the member 2. bore 24 opening to the channel or tool seat 23 and internally threaded to receive the cutter feed screw 25. The feed screw is reduced at '26 to form a swivel flange or head 21 which engages in a notch-like recess 28 in the rear end. of the tool 22.

With the parts thus arranged, rotative movement of the feed screw 25 which is provided with a finger piece 29 adjusts the tool to advance or retract it as desired.

A set screw 30 is arranged in a threaded opening 3| disposed transversely of the tool for clamping the tool in its desired position relative to the work.

With the parts in the position des'cribed,frotative movement of the device I as a whole around the stem IE will result in a groove being cut therein. Obviously a plurality of cuts may be made by advancing the tool 22 at the conclusion of each rotation or cutting step of the device. The device may be conveniently rotated by a handle 32 carried thereby in any desired position.

Refinements of the device as above described will suggest themselves to those skilled in the art. Suitable calibrating means may be provided for the rotatable stem 25 whereby the extent to which the same has been advanced for a packing of given size may be determined. Likewise other changes will occur to those skilled in the art.

However, the structure described aptly illustrates and embodies the principle of my invention. By using the same, valve stems and other rod stock may be quickly and accurately turned and operations heretofore requiring lathe operations may be accurately and satisfactorily performed by the hand device which I provide.

I wish to claim the invention broadly as Well as specifically, as pointed out in the appended claims.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent, is:

1. A device of the class described for circumferentially grooving rod-like work comprising a pair of telescopingly associated body' members provided with opposed V-shaped jaws, said body members being open at one side to permit the introduction and removal of the Work when the jaws are open, screw means for adjusting said body members for bringing said jaws into supporting and guiding engagement with the Work or to release the same, one of the body members having a longitudinal groove-like tool seat and also having a longitudinal internally threaded bore opening to said tool seat, a tool disposed in said seat and having a notch facing said bore, and a feed screw for said tool having threaded &I 1 gagement with said threaded bore and provided with a swivel head engaging said notch in said tool, and a clamping screw disposed transversely of said tool seat for clamping said tool in its adjusted positions in said seat.

2. A device of the class described for circumf-erentially grooving rod-like work comprising a pair of telescopingly associated body members provided with opposed V-shaped jaws, said body members being open at one side to permit the introduction and removal of the work when the jaws are open, screw means for adjusting said body members for bringing said jaws into supporting and guiding engagement with the work or to release the same, one of the body members having a longitudinal groove-like tool seat and also having a longitudinal internally threaded The member 2 has a longitudinal bore opening to said tool seat, a tool disposed in said seat and having a notch facing said bore, and a feed screw for said tool having threaded engagement with said threaded bore and provided with a swivel head engaging said notch in said tool. 7

3. A device of the class described for circumferentially grooving rod-like work comprising a pair of telescopingly associated body members provided with opposed l-shaped jaws, said body members beingopenat one side to permit the introduction and removal of the work when the jaws are open, screw means movablein one direction for adjusting said body members to bring said jaws into supporting and guiding engagement with the work, one of the body members having a tool seat, a tool disposed in said seat, and a feed screw movable oppositely to the direction of movement of the screw means to advance said tool.

4. A device of the class described for circumferentially grooving rod-like work comprising a pair of telescopingly associated body members providedwith opposed jaws, means for adjusting said body members for bringing said jaws into supporting and guiding engagement with the work or to release the same, one of the body members having a longitudinal'tool seat and also having a longitudinal internally threaded bore opening to said tool seat, a tool disposed in said seat and having a notch facing said bore, and a feed screw for said tool having threaded engagement with said threaded bore and provided with a swivel head engaging said notch in said tool, and a clamping screw disposed transversely of said tool seat for clamping said tool in its ad- 'justed positions insaid seat.

5. A device of the class described for circumferentially grooving rod-likework comprising a pair of telescopingly associated body members provided with opposed jaws, means for adjusting said body members for bringing said jaws into supporting and guiding engagement with the work or to release the same, said adjusting means serving to separate said jaws whereby they are 6. A device of the class described for circum ferentially grooving rod-like work comprising a pair of telescopingly associated body .members provided with opposed jaws, means for adjusting said body members for bringing said jaws into supporting and guiding engagement with the work or to release the same, one of the body members having a longitudinal tool seat and also having a longitudinal internally threaded bore beside and opening to said tool seat, a tool disposed in said seat and having a notch facing said bore, and a feed screw for said tool having a threaded engagement with said threaded bore and provided with a swivel head engaging said notch in said tool. I

7. A device of the class described for circumferentially grooving rod-like work comprising a pair of telescopingly associated body members provided with opposed jaws open atone side, means for adjusting said body members for bringe ing said jaws into supporting and guiding engagement with the work or to release the same, one of the body members having a tool seat, a

tool disposed in said seat, and means independent of said adjusting means for feeding said tool into operative work engaging position, said feeding means being disposed oppositely of' said jaws with relation to the adjusting means.

8. In a device for grooving rod stock, a pair of guide members in the form of telescoping jaws adapted to be relatively approached and retracted to support and guide the device for rotation relative to the stock, means for limiting the extent of telescoping movement of said members, means for approaching and retracting said members, a tool slidably mounted in one of said members, means on the opposite side of the jaws from said approaching and retracting means for sliding the tool toward the stock, means for locking the tool in desired operative position, and means for rotating the device relative to the stock to cut a groove in the same.

9. In a device for grooving rod stock, a pair of guide members in the form of telescoping jaws adapted to be relatively approached and retracted to support and guide the device for rotation relative to the stock, means for approaching and retracting said members, a tool slidably mounted in one of said members, means on the opposite side of the jaws from said approaching and retracting means for sliding the tool toward the stock, means for locking the tool in desired operative position, and means for rotating the device relative to the stock to cut a groove in the same.

10. In a device for grooving rod stock, a pair of guide'members in the form of telescoping jaws adapted to be relatively approached and retracted to support and guide a tool for rotation relative to the stock, means for limiting the extent of telescoping movement of said members, means for approaching and retracting said members, a tool adjustably movable in one of said members, means for moving the tool therein, means for rotating the tool relative to the stock to cut a groove in the same and means in one of said members disposed transversely of the path of movement of the tool for locking the tool in adjusted position.

11. In a device for grooving rod stock, a pair of guide members in theform of telescoping jaws adapted to be relatively approached and retracted to support and guide a tool for rotation relative to the stock, means for approaching and retracting said members, a tool adjustably movable in one of said members, means for moving the tool therein and means in one of said members disposed transversely of the path of movement of the tool for locking the tool in adjusted position.

HAROLD P. PHILLIPS. 

